发明名称 |
MESSAGE BUFFER FOR A RECEIVER APPARATUS ON A COMMUNICATIONS BUS |
摘要 |
A Controller Area Network (CAN) node consists of a high-powered microcontroller (10), a low standby power regulator (112), a CAN bus transceiver (106), and a minimal CAN message buffer for storing received messages. Low power standby operation allows for the controller to power off, while the transceiver and regulator are operated in standby. The transceiver/regulator will enter run mode after the first symbol of a received CAN message is validated off the bus. As the original CAN message is received, it is buffered in the message buffer and, after stored, a status register is set to indicate the full message has been received. Once the controller has stabilized out of a wake-up mode, it retrieves the stored message and acts accordingly. The CAN message buffer is coupled to the controller by an system packet interface (SPI) interface (122) for transmission of a controller wake-up command and retrieval of a buffered message. |
申请公布号 |
WO2007130730(A2) |
申请公布日期 |
2007.11.15 |
申请号 |
WO2007US62536 |
申请日期 |
2007.02.22 |
申请人 |
FREESCALE SEMICONDUCTOR INC.;HU, CARL, C.;GAUEN, KIM, R. |
发明人 |
HU, CARL, C.;GAUEN, KIM, R. |
分类号 |
H04L12/56 |
主分类号 |
H04L12/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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